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# Solutions for Chapter 7-4: THE TANGENT FUNCTION ## Full solutions for Functions Modeling Change: A Preparation for Calculus | 4th Edition

ISBN: 9780470484753 Solutions for Chapter 7-4: THE TANGENT FUNCTION

Solutions for Chapter 7-4
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##### ISBN: 9780470484753

Chapter 7-4: THE TANGENT FUNCTION includes 32 full step-by-step solutions. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Functions Modeling Change: A Preparation for Calculus , edition: 4. Since 32 problems in chapter 7-4: THE TANGENT FUNCTION have been answered, more than 18546 students have viewed full step-by-step solutions from this chapter. Functions Modeling Change: A Preparation for Calculus was written by and is associated to the ISBN: 9780470484753.

Key Calculus Terms and definitions covered in this textbook

P(A or B) = P(A) + P(B) - P(A and B). If A and B are mutually exclusive events, then P(A or B) = P(A) + P(B)

• Arcsine function

See Inverse sine function.

• Commutative properties

a + b = b + a ab = ba

• Cosine

The function y = cos x

• Focal width of a parabola

The length of the chord through the focus and perpendicular to the axis.

• Irrational numbers

Real numbers that are not rational, p. 2.

See Polynomial function in x

• Length of a vector

See Magnitude of a vector.

• Logistic regression

A procedure for fitting a logistic curve to a set of data

• Mean (of a set of data)

The sum of all the data divided by the total number of items

• Modified boxplot

A boxplot with the outliers removed.

• Nonsingular matrix

A square matrix with nonzero determinant

• Permutations of n objects taken r at a time

There are nPr = n!1n - r2! such permutations

• Right circular cone

The surface created when a line is rotated about a second line that intersects but is not perpendicular to the first line.

• Simple harmonic motion

Motion described by d = a sin wt or d = a cos wt

• Standard form of a polar equation of a conic

r = ke 1 e cos ? or r = ke 1 e sin ? ,

• Supply curve

p = ƒ(x), where x represents production and p represents price

• Transformation

A function that maps real numbers to real numbers.

• Triangular form

A special form for a system of linear equations that facilitates finding the solution.

• xz-plane

The points x, 0, z in Cartesian space.

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